Restore My Telegram Account

For the past one week I have been unable to log in to my Telegram account with my phone number +2348037563***. Each time I try to sign in, I enter my number correctly and the screen shows an error message saying “Error: Too many requests. Try again in 2 hours.” Even when I wait as requested and try again later, the same error keeps appearing and I still cannot access my account. I have important contacts and conversations in this account and this ongoing restriction is seriously affecting my communication. I kindly request that my account be checked and that this restriction on my number be removed so that I can immediately restore access to my Telegram account.